Jacquard loom



UNITE AFEB rr ornion.

JAMES C. COOK, OF-WATERBURY, CONNECTICUT, A SSIGNOR TO HOTCHKISS SzMERRIMAN MANFG. CO., OF WATERBURY, CONNECTICUT.

JACQUARD LooM.

Speccaton of Letters Patent No. 15,717, dated September 9, 1856.

To all whom 1' concern Be it known that I, JAMES C. COOKE, of the cityof l/Vaterbury, in the county of New Haven and State of Connecticut,have invented a new and useful Improvement in the Method of WorkingJacquard Looms for Weaving Figured Fabrics; and I do hereby declare thatthe following is a full,

clear, and exact description of the construc-V tion, character, andoperation of the same,

reference being had to the accompanying drawings, which make a cation,in which- Figure l, is a perspective view of the attachment, taken fromthe rear end and left hand side. Fig. 2 is a birdseye view of the same.Fig. 3 is a part elevation of the same. Fig. 4 is a side elevation, ofthe right hand side. Fig. 5, is a longitudinal section cut verticallythrough the line, X, X, Fig. 3. Fig. 6, is a cross section, cutvertically through the line Y, Y, Fig. 4. Fig. 7, is a plan of one ofthe lifting bars, with the hook, and spring, attachment.

My improvement consists in so constructing the lifting bars, with across bar, or hook, attached, that when the needles pass into the holesin the cylinder, so as to relieve the hooks, a spring will throw thehooks formed to such a position that a bar, (extending across the frontend of the apparatus,) will take hold of the front end of the hooks andraise the lifting bars to work the heddles, or harness;` but when theneedles do not enter the holes in the cylinder the hooks will be heldback so that the front ends will be within the lifting bars, and,therefore, will not be acted upon. And, in so connecting a ratchet wheelwith a cam, and diagonal slots, and a stationary click, that thecylinder will have an intermittent rotary, and vertical, motion as wellas a reciprocating, horizontal, motion, to vary the pattern, and will besusceptible of being changed at pleasure.

I make the cylinder, A, Figs. l, 2, and 6, of wood, or any othersuitable material, with any desired pattern displayed on its convexsurface, (and more than one pattern may be displayed on `the samecylinder, when thought best; and any number of cylinders may be used atpleasure). `The journals of this cylinder, A, rest in bearings whichslide in grooves, or slots, as shown at B, and B, Fig. 1, and B, Figs.4, and 5. And it repart of this speci- By the horizontal motion of thecylinder, i

as before described, the teeth of the ratchet wheel, F, Figs. l, 2, 4,5, and 6, come in contact with the stationary dog, Figs. 1, 2, 4, and 5,and revolve A, one notch, so as to bring another set of holes on theside next the needles to change the pattern. And by the operation of thelifting bars, a dog, or pawl, H, works in the large ratchet wheel, I,and revolves the cam, K, which by means of the hand, or tracer, L, givesa vertical motion to the cylinder, which also varies, or changes, thepattern, when necessary.

To work the heddles, or harness, I insert the requisite number oflifting bars, or jacks, made substantially in the shape shown at a, Fig.7, and their places shown at a, &c., Figs. l, 2, 3, 4, and 5. In each ofthese lifting bars I fit a movable cross bar, or hook, in which I fit aspiral spring, o, Fig. 7, to throw the hook, o, forward to the positionshown inFig. 7, and at Z1', Figs. 2, 4, and 5, when the needle connectedwith it` enters the hole in the cylinder, as seen at UZ', Figs. 2, 4and5, by which means the cross bar, C, will carry the lifting bar, a, up tothe position shown at a, Fig. 1, and thereby work the heddles, orharness, in accordance with the pattern on the cylinder. These needles,d, (Z, d, press against a, rocking piece, shown at e, and c', Figs. 4and 5, and at e, &c., Figs. l, and 2, so that when the needle, (Z, doesnot pass into the hole in the cylinder it will hold the rocking piece inthe position shown at e', Figs. 4, and 5, and thereby hold back thehook, b, so that the bar, E, will not touch it. But when the needleenters the hole in the cylinder, as at d', the spring, o, will throw thehook to the position shownat o', so that the raising of the bar, C, willcarry up the lifting bar to the position shown at a, Fig. 1, and so workthe harness.

Having constructed the attachment, as described, and connected it, inany proper way, with the harness of the loom, I apply the power to thefront cross bar, E. When this bar, E, is elevated it will carry up suchof or click, G,

the cylinder,

the lifting bars as have the hooks, Z), in the position shown in Fig. 7,(and at b, Figs. 4, and 5,) and will also carry up the side pieces whichcontain the diagonal slots, C, and D, Figs. 4L, and l, (to the positionseen in Fig. 1,) which, by means ofthe connecting rods, g, Figs. 1, and4, will give a horizontal motion to the cylinder, A, and, by means ofthe stationary click, or dog, Gr, Will give the cylinder an intermittentrotary motion, and, by the operation of the dog, or hand, H, the cam K,and rod, or tracer, L, Will, at suitable times, give it a verticalmotion; all of which motions vary, or change, the pattern, as desired,by bringing different portions of the cylinder, A, to the needles, Z d,ci.

7The cylinder, ratchet-Wheels, and cam, may be varied, or replaced, atpleasure, When a change of pattern requires it; and

any required number of lifting bars and their appendages may be used toWork the harness, to suit the desired patterns.

Vhat I claim as my invention, and desire to secure by Letters Patent,is-

1. The combination of the lifting bar with the sliding hook and rockingpiece for operating the needle, when constructed, and made to operate,substantially, as herein described.

2. l also claim the use of a pattern cylinder having a reciprocatinghorizontal and vertical movement combined with the movement of rotationon its axis in the manuel' and for the purpose set forth.

JAs. c. cooKE.

Witnesses R. FITZGERALD, A SMITH.

